[PATCH] x86-64: Add FMA multiarch functions to libm

[H.J. Lu]

On Mon, Aug 7, 2017 at 7:17 AM, Joseph Myers <joseph@codesourcery.com> wrote:
> On Sun, 6 Aug 2017, H.J. Lu wrote:
>
>> +# FMA is disabled due to [BZ #19003].
>> +CFLAGS-e_pow-fma.c = -mno-fma -mavx2
>
> That's not correct.  You should use -mfma -mavx2 $(config-cflags-nofma),
> so that fma is used for code explicitly wanting a fused operation (via
> DLA_FMS), but not implicitly via contraction.
>

Updated.  I am checking in this.

Thanks.

-- 
H.J.
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